JPH051005Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a disk autoloading device and is suitable for optical reading devices and the like.

(B) Conventional technology In recent years, optical disks have been used as disks for high-density recording and playback.In order to protect the surface from scratches, dust, etc., optical disks are stored in cartridges, and used for recording and playback. It is desirable to be able to load the device automatically.

By the way, in such an automatic disk loading device, the disk is first held higher than the turntable using a holder, and after the holder is inserted into the device, the holder is lowered and the disk is placed on the turntable. must be installed. Therefore, two motors are required to drive the holder horizontally and vertically, and the operation timing of both motors must be precisely controlled, resulting in an increase in the number of parts and complexity in controlling the operation timing. .

Therefore, as seen in Japanese Patent Application Laid-Open No. 59-110069, a first mechanism part that slides a holder frame housing a disk holder, and a second mechanism part that moves a frame body provided above the holder frame up and down. The structure includes a mechanism section and a single drive mechanism section that sequentially operates the first and second mechanism sections, thereby reducing the number of parts.

In addition, the above-mentioned cartridge is
As seen in Japanese Patent No. 94277, it has a movable shutter that opens and closes the rotation aperture and the recording/reproducing aperture of the optical disk. Each opening is normally closed with a shutter, and when the cartridge is inserted into the autoloading device, the shutter is moved to open each opening.

(c) Problems to be solved by the invention Even in the above-described configuration, the single drive mechanism section must slide and move the first and second mechanism sections up and down in a well-timed manner, resulting in poor operation. Timing control is complicated.

Furthermore, it is necessary to add shutter opening/closing timing to these timings.

The purpose of this invention is to easily and accurately move the disk cartridge horizontally and vertically and to clamp the disk using a single drive unit, and to open and close the shutter of the disk cartridge in a timely manner with a simple configuration. It is in.

(d) Means for Solving Problems The autoloading device of the present invention includes a first holder for holding a disk cartridge having a movable shutter and a hook that interlocks with the shutter, and a slider for sliding the first holder. The second part that can be held freely
a holder, a slide hook disposed inside the rear of the first holder so as to be movable in a direction perpendicular to the sliding direction of the first holder, one end of which is connected to the slide hook, and the other end of which is connected to the second holder. The belt means which is fixedly attached to the belt, and the holder arm whose tip is rotatably supported by the fixed frame and whose rear end swingably holds the second holder, move linearly to rotate the holder arm. A first slide rack, a second slide rack that moves linearly to slide the first holder, and a drive section that moves the first slide rack and the second slide rack; the hook engages with the slide hook by being inserted into the first holder;
As the second slide rack moves, the first holder and the disk cartridge slide within the second holder, and the slide hook fixed to the belt means moves to move the shutter; The present invention is characterized in that the holder arm rotates as the first slide rack moves, thereby lowering the second holder.

(E) Function The present invention moves the disk cartridge in each direction horizontally and vertically by linearly driving the first slide rack and the second slide rack. Sometimes the shutter of the disk cartridge must be moved.

(f) Embodiment FIGS. 5 and 6 are an external perspective view and an exploded perspective view showing a disk cartridge suitable for the autoloading device of the present invention.

50 and 51 are rectangular upper and lower covers having first openings 52a and 52b and second openings 53a and 53b, respectively; 54 are respective first openings 52a and 52b;
Both covers 50, 51 with the center hole 54a facing
The optical disk 55 housed therein has a long hole 56, and guides 57a and 57a are attached to the front surfaces of the upper and lower covers 50 and 51 with a slight gap therebetween.
57b has vertical bent portions 58a and 58b at one end, respectively.
and a plate-shaped shutter having a step-like bent portion 59a at the other end; 60 and 61 are first and second supports that sandwich the bent portions 58a and 58b of each shutter; It is arranged inside the guide 55. Therefore, the bent portions 58a and 58b will be inserted into the gap. Further, the first support 60 has a hook 62 projecting into the elongated hole 56 of the guide 55, and the second support 61 has a U-shaped groove 63.
Reference numeral 64 denotes a holding plate that slidably holds the bent portion 59a of one shutter 57a in cooperation with the upper surface of the upper cover 50. Note that the bent portion of the other shutter 57b is similarly held by a holding plate (not shown).

Thus, the upper and lower shutters 57a, 57b
is slidably moved while being regulated by the guide 55 and the holding plate 64, and opens and closes the first openings 52a, 52b and the second openings 53a, 53b.

Reference numeral 65 denotes a guide bar fixed to recesses 66, 66 on both sides of the tip of the lower cover 51, and the U-shaped groove 63 of the second support body 61 is loosely fitted into the guide bar 65. Sliders 68a and 68b, which are loosely passed through the guide bar 65, are springs having one end fixed to the sliders 67a and 67b and the other end fixed to the lower cover 51, respectively. Therefore, the sliders 67a and 67b are connected to the spring 68.
It is pressed against the side of the second support body 61 by the biasing forces of a and 68b.

Furthermore, 69a and 69b are L-shaped first portions that are slidably disposed on both side walls of the lower cover 51 with sides 70a and 70b protruding inward of the lower cover 51.
One end of the levers 71a, 71b is the side 70a, 70
A pad, 72a, rotatably arranged at the tip of b.
A second lever 72b has one end rotatably attached to the other end of the pads 71a, 71b, and the other end rotatably fixed to the lower cover 51; Springs 74a and 74b biasing the cover 51 toward the tip are ribs provided near the tip of the lower cover 51 facing the pads 71a and 71b. Usually spring 7
Due to the biasing forces of 3a and 73b, the pads 71a,
71b and the ribs 74a, 74b are the lower cover 5.
It is placed in contact with the outer periphery of the optical disk 54 placed on the optical disk 1 or is positioned with a slight gap therebetween, thereby restricting the free movement of the optical disk 54.

1 to 4 are a perspective view, a side sectional view, a side sectional view of a main part, and a top partial sectional view showing an autoloading device suitable for using the above-described disk cartridge.

1 has a shutter that can be opened and closed as described above,
2 is a frame-shaped first holder that holds the optical disk therein; 3 is a first slide pin provided on both sides of the rear end of the first holder; 4 is a first slide pin provided on both sides of the rear end of the first holder; 1st
A frame-shaped second holder 5 longer than the holder 2 is a long hole bored on both sides of the second holder, and when the first slide pin 3 is inserted into the long hole,
The second holder 4 slidably holds the first holder 2. Reference numeral 6 denotes a holder arm having a U-shaped cross section and arranged to cover the front upper part of the second holder 4. have 9
is a support shaft provided on both sides of the rear end of the holder arm 6, which swingably holds both sides of the second holder 4 at approximately the center thereof. 10 is a guide provided along the inner rear surface of the first holder 2; 11 is a slide hook that is slidable along the groove of the guide; 12 has one end attached to the slide hook 11 and the other end attached to the second holder 4; These are elastic steel belts fixed to the inner side walls of the Therefore, as the first holder 2 slides within the second holder 4,
The slide hook 11 moves along the guide 10 in a direction perpendicular to the sliding movement of the first holder 2. 1
3 is a frame, and 14 is a shaft that rotatably supports both sides of the tip of the holder arm 6 on the frame. 15 is a plate-shaped first slide rack that has a gear rack 16 on its lower surface and is arranged parallel to the holder arm 6; 17 is a second slide pin provided at the rear end of the first slide rack; and 18 is a first slide rack. A long hole is provided in the slider 15 and engages with the roller 8. The long hole includes a horizontal portion 18a at a height that holds the holder arm 6 horizontally, an inclined portion 18b that descends forward from the horizontal portion, and Following this horizontal section 18
Consists of c. 19 has a gear rack 20 on the lower surface, a plate-shaped second slide rack arranged parallel to the first slide rack 15, and 21 and 22 each have a gear rack 20 on the lower surface.
The elongated holes in the vertical direction and the elongated holes in the horizontal direction engage with the slide pin 3 and the second slide pin 17, and 23 is a drive unit consisting of a drive gear 24, a transmission gear 25, and a drive motor 26 that mesh with the gear racks 16 and 20. be. Thus, when the drive motor 26 rotates, the first slide rack 15 and the second slide rack 1
9 moves in a straight line. The first slide rack 15 and the second slide rack 19 are slidably held on both sides by holding members (not shown).

Furthermore, 27 is a first clamp arm having a U-shaped cross section and arranged above the rear end of the second holder 4, 28 is a clamper provided on the lower surface of the tip of the first clamp arm, and 29 is a first clamp arm. A cut-and-raised piece is formed by cutting upward on the rear upper surface of the clamp arm 27, 30 is a second clamp arm with a U-shaped cross section and arranged at the lower rear of the first clamp arm 27, and 31 is the second clamp arm. 32 is a hole bored on both sides of the tip of the second clamp arm 30; 33 is a support shaft provided between the frames 13; The shaft rotatably holds both side surfaces of the rear end of the first clamp arm 27 and rotatably holds both side surfaces of the rear end of the second clamp arm 30. 34 is a spring stretched between the cut and raised piece 29 and the tongue piece 31 so as to draw each piece together; 35 is fixed at one end to the spindle 9; and a pin 36 provided at the other end is inserted into the hole 32. This is a connected rod.

Further, 37 is a holding leg disposed below the disk cartridge 1, 38 is a spindle motor disposed below the clamper 28, and 39 is a pick-up movably disposed below the disk cartridge 1. It is.

The operation of the autoloading device having such a configuration will be explained below.

In the initial state, the slide hook 11 is located approximately at the center of the guide 10 in the axial direction. In this state, when the disk cartridge 1 is inserted through the front opening of the first holder 2, the slide hook 1
1 engages with the hook 62 of the disk cartridge 1 (FIG. 4). Further, projections (not shown) protruding from inside both sides of the first holder 2 move the first levers 69a, 69b of the disk cartridge 1 against the biasing force of the springs 73a, 73b. Therefore, the pads 71a and 71b are separated from the optical disk 54, and the optical disk 54 becomes rotatable.

When the drive gear 24 is rotated clockwise, both the first slide rack 15 and the second slide rack 19 move linearly to the right. Second
As the slide rack 19 moves, the first holder 2, which has the first slide pin 3 that engages with the elongated hole 21, moves to the right inside the second holder 4. This movement continues until the gear rack 20 and drive gear 24 are disengaged. When the slide hook 11 moves to the left (see FIG. 4) with the movement of the first holder 2, the first support 60 having the hook 62 engaged therewith moves against the shutters 57a, 57b. and moves together with the second support body 61 against the biasing force of the spring 68a, so that the first openings 52a, 52b and the second openings 53a, 53b of the disk cartridge 1 are exposed. after that,
Further, with the subsequent movement of the first slide rack 15, the roller 8 moves from the high horizontal portion 18a of the elongated hole 18 to the low horizontal portion 18c via the inclined portion 18b. As the roller 8 moves, the holder arm 6 rotates clockwise about the shaft 14. As a result, the first holder 2 descends together with the second holder 4 with the first slide pin 3 engaged in the elongated hole 21, and therefore, the disk cartridge 1 has its lower surface connected to the holding leg 21.
It descends until it touches 7. At this time, the rotating shaft of the spindle motor 38 passes through the first opening 52b of the disk cartridge 1, and passes through the center hole 5 of the optical disk 54.
Enter 4a.

Further, due to the rotation of the holder arm 6 mentioned above, the connecting rod 35 is lowered. Therefore, the second clamp arm 30 rotates counterclockwise together with the support shaft 33, and the spring 34 pulls the cut and raised piece 29. Therefore, the first clamp arm 2
7 rotates counterclockwise around the support shaft 53, the clamper 28 descends onto the disk cartridge 1, enters the disk cartridge 1 through the first opening 52a, and cooperates with the rotating shaft of the spindle motor 38. The optical disc 54 is pressed and clamped by the optical disc 54.

In this way, the optical disk 54 is held and rotated by the spindle motor 38 and the clamper 28. At this time, the second opening 53b is naturally open, and the optical disk 54 faces the pick-up 39. Therefore, the pickup 39 allows information to be recorded and reproduced.

In this embodiment, the clamper 28 is pressed by the second clamp arm 30 pulling the first clamp arm 27 by the spring 34, and therefore the clamper 28 is pressed elastically. An optimum pressing force can be obtained by selecting the elastic force of the spring 34 to a desired value.

Incidentally, if the first clamp arm 27 and the second clamp arm 30 are integrally formed and tensioned by the connecting rod 35, a simple structure can be achieved.

On the other hand, when taking out the disk cartridge 1, the drive gear 24 is rotated counterclockwise to perform an operation completely opposite to the above-mentioned operation.

At this time, the slide hook 11 returns to its initial state (FIG. 4) due to the elastic force of the steel belt 12, and the shutter 57 of the disk cartridge 1
a, 57b are the first openings 52a, 52b and the second openings 53a, 53 due to the urging force of the spring 74a.
Automatically returns to the position where b is closed.

(g) Effects of the invention According to the invention, by linearly driving a single drive unit, the disk cartridge can be easily moved horizontally and vertically. can be opened and closed using a very simple structure of a slide hook and a steel belt.

[Brief explanation of the drawing]

Figures 1 to 6 show an embodiment of the present invention,
Figures 1 to 4 show the autoloading device, with Figure 1 being a perspective view, Figure 2 being a side sectional view, and Figure 3 being a side sectional view.
The figure is a side sectional view of only the main part, and FIGS. 4A and 4B are partial sectional views of only the main part in different states. 5 and 6 show the disk cartridge, FIG. 5 being a perspective view and FIG. 6 being an exploded perspective view. DESCRIPTION OF SYMBOLS 1... Disk cartridge, 2... First holder, 4... Second holder, 6... Holder arm, 11... Slide hook, 12... Steel head, 23... Drive unit, 28... Clamper.

Claims (1)

[Scope of utility model registration request] a first holder for holding a disc cartridge having a movable shutter and a hook that interlocks with the shutter; a second holder for slidably holding the first holder; a slide hook movably arranged in a direction perpendicular to the sliding direction of the first holder; a belt means having one end fixed to the slide hook and the other end fixed to the second holder; and a tip rotating around the fixed frame. a holder arm that is movably supported and swingably holds the second holder by its rear end; a first slide rack that moves linearly to rotate the holder arm; and a first slide rack that moves linearly and swings the second holder; a second slide rack for sliding the first holder; and a drive section for moving the first slide rack and the second slide rack; when the disk cartridge is inserted into the first holder, the hook is engages with the slide hook, and by movement of the second slide rack,
As the first holder slides in the second holder together with the disk cartridge, the slide hook fixed to the belt means moves to move the shutter, and the movement of the first slide rack causes the shutter to move. An autoloading device characterized in that the holder arm is configured to rotate and lower the second holder.